9/10/2012 Temperature and Release Summary for Shasta and Trinity - August 2012

(Updated twice a week November through April)

Sacramento River Water Temperatures in Degrees F

Day Collected from CDEC (California Data Exchange Center) in CFS

Control Control

TCD SHD minus Point Point Shasta Spring Crk 

Wt. TCD 4/16 to 5/31 6/1 to 8/31 Generation Powerplant 

Avg. (Diff) Shd Spp Kwk Bsf Jlf Bnd Rdb Lws Ccr Igo El 815 Release 

Jul 50.7 49.8 55.1 51.3 53.6 54.6 55.1 56.8 50.8 52.3 57.8 12,677 1,338 

Aug

1 51.9 (0.9) 51.0 56.5 52.4 54.5 55.5 55.8 57.5 53.0 53.3 57.9 12,621 1,561 

2 51.7 (0.8) 50.9 56.5 52.5 54.7 55.7 55.9 57.5 53.0 53.5 57.6 12,507 1,548 3 51.5 (1.0) 50.5 56.6 52.3 54.7 55.8 56.0 57.6 53.1 53.4 57.5 12,518 1,570 4 51.7 (1.1) 50.6 56.6 52.2 54.3 55.4 55.6 57.3 52.8 53.2 57.4 12,601 1,580 5 52.0 (1.1) 50.9 56.7 52.3 ? 54.6 55.7 55.9 57.6 53.2 53.3 57.9 12,988 1,371 

6 51.8 (0.9) 50.9 56.7 52.6 54.7 55.7 55.9 57.6 53.2 53.5 57.3 12,323 1,582 

7 52.0 (1.1) 50.9 56.8 52.4 54.6 55.7 55.9 57.6 53.1 53.4 57.2 12,402 1,218 8 51.2 (1.0) 50.2 56.9 52.6 54.7 55.8 55.9 57.5 53.3 53.5 57.5 11,945 1,219 9 51.2 (1.1) 50.1 56.9 52.0 54.5 55.6 56.0 57.7 53.1 53.1 57.3 11,353 1,528 

10 51.4 (1.3) 50.1 56.9 52.1 54.5 55.6 56.0 57.5 52.8 53.1 57.9 11,806 1,525 11 51.5 (1.2) 50.3 57.0 52.2 54.4 55.5 56.0 57.7 52.8 53.1 57.4 11,433 1,363 12 51.4 (1.4) 50.0 57.0 52.3 54.6 55.6 56.0 57.6 52.7 53.3 56.9 10,394 1,335 13 51.1 (1.2) 49.9 57.0 52.4 54.7 55.9 56.4 58.0 51.4 53.4 57.3 10,293 1,548 14 50.8 (1.3) 49.5 57.1 52.2 54.8 56.0 56.5 58.2 50.8 53.4 57.7 10,122 1,502 15 50.6 (1.2) 49.4 57.1 51.7 54.0 55.3 55.8 57.7 50.2 52.7 56.8 9,830 1,566 16 50.7 (1.1) 49.6 57.2 51.6 54.1 55.3 55.7 57.3 49.8 52.8 57.5 9,527 1,505 17 50.9 (1.5) 49.4 57.1 51.9 54.5 55.7 56.2 57.9 49.9 53.0 57.6 9,797 1,526 18 50.9 (1.4) 49.5 57.1 52.0 54.6 55.9 56.5 58.4 50.2 53.1 57.8 9,809 1,511 19 49.7 (0.8) 48.9 57.1 52.0 54.6 55.8 56.3 58.1 50.0 53.2 57.5 9,693 1,488 20 49.5 (1.0) 48.5 57.1 51.0 53.9 55.3 55.9 57.7 50.1 52.5 56.9 9,779 1,454 

21 49 6 48 5 57 1 50 7 53 0 54 3 54 9 56 8 49 9 51 7 56 8 9 865 1 509 

Mean Daily Relea

21 49.6 (1.1) 48.5 57.1 50.7 53.0 54.3 54.9 56.8 49.9 51.7 56.8 9,865 1,509 

22 49.5 (1.0) 48.5 57.2 50.6 53.0 54.1 54.5 56.1 49.8 51.7 57.0 9,649 1,520 23 49.5 (1.0) 48.5 57.2 50.8 53.2 54.3 54.7 56.4 49.8 51.9 57.0 9,173 1,489 24 49.6 (1.1) 48.5 57.2 50.8 53.1 54.2 54.7 56.4 49.7 51.8 56.5 9,070 1,529 25 49.7 (1.1) 48.6 57.2 50.8 53.0 54.2 54.6 56.3 49.6 51.7 56.0 8,667 1,467 26 49.7 (1.1) 48.6 57.1 50.7 53.2 54.4 54.8 56.4 49.6 51.8 56.3 8,802 1,238 27 49.8 (1.1) 48.7 57.2 50.6 53.0 54.2 54.7 56.3 49.6 51.7 56.0 9,335 1,173 28 49.7 (1.0) 48.7 57.1 50.6 52.9 54.0 54.4 56.1 49.7 51.6 55.9 9,130 1,159 29 49.7 (1.0) 48.7 57.1 51.0 53.1 54.1 54.5 56.0 49.5 52.0 56.4 8,192 1,562 30 49.7 (1.0) 48.7 57.1 51.0 53.1 54.2 54.7 56.1 49.4 51.9 55.8 7,896 1,550 31 49.7 (0.9) 48.8 57.0 51.1 53.5 54.6 54.9 56.4 49.1 52.2 55.8 8,020 1,523 

Avg 50.6 49.5 57.0 51.7 54.0 55.1 55.5 57.2 51.1 52.7 57.0 10,372 1,459 Tot cfs 321,540 45,219 Tot af 637,775 89,692 

# = Station out of service ^ - estimated (7 hours or less available) ? = Avg. includes estimated data! = 17 hours or less of readings & = 18 to 23 hours of reading ND = No hourly readings or incorrect 

Control Point: Balls Ferry 4/16/2012 to 5/31/2012; Jellys Ferry 6/1/2012 to 8/31/2012

V:\~WATER\_res_ops\Tempmodel\~sactemp\2012TempFiles\[08_2012 Monthly Summary.xls]Sac Riv Temps